Hi @Bogert Marco ,
For question 1: Where is the Datamodel stored on your Laptop? Or is the Model attached to the file?
Data model is a way for store data from source in Workbook, you can still using the data model in Excel without connecting to data source.
For question 2: If I make a copy or move the file somewhere in the cloud, does it still work?
Power BI feature is not available for Excel online, you can work with copied file in Desktop Excel.
For question Example:
After adding to data model, the Excel Workbook stored the latest data. If you remove the source file, you cannot refresh data but the data stored in data model is still existed. You can still work with the data in data model.
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